33225322521 has 8 divisors (see below), whose sum is σ = 44301307744. Its totient is φ = 22149776160.

The previous prime is 33225322469. The next prime is 33225322547. The reversal of 33225322521 is 12522352233.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33225322521 - 2²⁶ = 33158213657 is a prime.

It is a super-2 number, since 2×33225322521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33225322621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165726 + ... + 306456.

It is an arithmetic number, because the mean of its divisors is an integer number (5537663468).

Almost surely, 2^33225322521 is an apocalyptic number.

It is an amenable number.

33225322521 is a deficient number, since it is larger than the sum of its proper divisors (11075985223).

33225322521 is a wasteful number, since it uses less digits than its factorization.

33225322521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219431.

The product of its digits is 21600, while the sum is 30.

Adding to 33225322521 its reverse (12522352233), we get a palindrome (45747674754).

It can be divided in two parts, 33225 and 322521, that added together give a triangular number (355746 = T₈₄₃).

The spelling of 33225322521 in words is "thirty-three billion, two hundred twenty-five million, three hundred twenty-two thousand, five hundred twenty-one".